Learning Forum

[tristan.lacombe]

Hello, 

On the video "Post Processing & Parameterization of FSAE Composite & Monocoque Chassis Analysis in ANSYS - Part 6" from Ansys How To on Youtube, the torsional stifness is calculated with the maximum displacement as follow

 

My question is why the maximum value is taken and not the absolute maximum value which should be 3.19mm?

 

Thank you,

Tristan

[Akshay Singh]

Hello Tristan,

 

If the analysis is focused on a specific section(critical section) or component of the structure, the maximum deformation in that specific area (0.33 mm) would be more relevant than the absolute maximum deformation in the entire model. The value is used for calculating theta (s = r * theta).

 

The value 0.33 mm represent a deformation that is directly related to the torsional behavior being analyzed. This could be a critical deformation that affects the torsional stiffness calculation. The absolute maximum value of 3.19 mm might be a result of other factors or boundary conditions that are not directly relevant to the torsional analysis being performed.

This is a tutorial problem, for actual chassis, please refer to the guidelines provided by governing committee(FSAE) for calculations.